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Scrap melting process and device

机译:废料熔化工艺及装置

摘要

PCT No. PCT/DE93/01025 Sec. 371 Date May 31, 1995 Sec. 102(e) Date May 31, 1995 PCT Filed Oct. 25, 1993 PCT Pub. No. WO94/10348 PCT Pub. Date May 11, 1994A process and device for melting scrap in a direct current-driven closed shaft furnace. The scrap is fed with an annular cross-section into one end of the furnace and hot gases which flow against the falling scrap are sucked below the scrap feeding area via an outer cylindrical wall of the scrap column. The inner free surface of the ring-shaped flat cross-section of the scrap is reduced before the scrap reaches the melting zone. In the melting zone, the scrap is exposed to an electric arc at the center of the flat cross-section. The arc furnace has a cathode that is held by an electrode bearing device which is formed as a concentric pipe with respect to the central axis of the furnace vessel. At one end the pipe is conically tapered and at the other end it is supported on the shaft of the furnace by bearing arms.
机译:PCT号PCT / DE93 / 01025 371日期1995年5月31日102(e)日期:1995年5月31日; PCT申请日:1993年10月25日。 PCT公开号WO94 / 10348。日期:1994年5月11日,一种用于在直流驱动的封闭竖炉中熔化废料的方法和装置。废料以环形横截面进料到炉子的一端,流向下落的废料的热气体通过废料柱的外圆柱壁被吸入废料进料区的下方。在废料到达熔化区之前,废料的环形平坦横截面的内部自由表面被减小。在熔化区,废钢在扁平截面的中央暴露于电弧。电弧炉具有由电极支承装置保持的阴极,该电极支承装置相对于炉容器的中心轴线形成为同心管。管道的一端为锥形,另一端则由轴承臂支撑在炉的轴上。

著录项

  • 公开/公告号BR9307309A

    专利类型

  • 公开/公告日1999-06-01

    原文格式PDF

  • 申请/专利权人 MANNESMANN AKTIENGESELLSCHAFT;

    申请/专利号BR19939307309

  • 发明设计人 EWALD FEUERSTACKE;

    申请日1993-10-25

  • 分类号C21C5/56;F27B1/02;C21B13/02;

  • 国家 BR

  • 入库时间 2022-08-22 02:28:20

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